Composition for organic optoelectronic element, organic optoelectronic element, and display device

Abstract

A composition for an organic optoelectronic device including a first compound represented by Chemical Formula 1, and a second compound represented by a combination of Chemical Formula 2 and Chemical Formula 3, an organic photoelectronic device including the same, and a display device.The contents of Chemical Formula 1 to Chemical Formula 3 are as defined in the specification.

1 . A composition for an organic optoelectronic device, the composition comprising:
 a first compound represented by Chemical Formula 1, and   a second compound represented by a combination of Chemical Formula 2 and Chemical Formula 3:   
       
         
           
           
               
               
           
         
         wherein, in Chemical Formula 1, 
         X is O or S, 
         Z 1  to Z 3  are each independently N or CR a , 
         at least two Z 1  to Z 3  are N, 
         L 1  and L 2  are each independently a single bond, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heterocyclic group, or a combination thereof, 
         Ar 1  and Ar 2  are each independently a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group, 
         R a  and R 1  to R 7  are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a halogen, a cyano group, or a combination thereof, 
         at least one pair of R 1  and R 2 ; R 2  and R 3 ; R 3  and R 4 ; R 5  and R 6 ; and R 6  and R 7  is linked to each other to form a substituted or unsubstituted aromatic or heteroaromatic ring, and 
         * is a linking point, 
       
       
         
           
           
               
               
           
         
         wherein, in Chemical Formula 2 and Chemical Formula 3, 
         a1* to a4* in Chemical Formula 2 are each independently a linking carbon (C) or CR b , 
         adjacent two of a1* to a4* in Chemical Formula 2 are each linked to Chemical Formula 3, 
         R b  and R 8  to R 12  are each independently hydrogen, deuterium, a substituted or unsubstituted amine group, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group or a substituted or unsubstituted C2 to C30 heterocyclic group, 
         L 3  to L 5  are each independently a single bond, a substituted or unsubstituted C6 to C30 arylene group, or a substituted or unsubstituted C2 to C20 heterocyclic group, 
         Ar 3  to Ar 5  are each independently a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group, and 
         * is a linking point. 
       
     
     
         2 . The composition for the organic optoelectronic device of  claim 1 , wherein:
 the first compound is represented by any one of Chemical Formula 1-I to Chemical Formula 1-XI:   
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         in Chemical Formula 1-I to Chemical Formula 1-XI, 
         X, Z 1  to Z 3 , L 1  and L 2 , Ar 1 , and Ar 2  are defined the same those of Chemical Formula 1, and 
         R c , R d , R e , R f , and R 1  to R 7  are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a halogen, a cyano group, or a combination thereof. 
       
     
     
         3 . The composition for the organic optoelectronic device of  claim 2 , wherein the first compound is represented by Chemical Formula 1-I, Chemical Formula 1-II, Chemical Formula 1-III, Chemical Formula 1-VI, or Chemical Formula 1-VII. 
     
     
         4 . The composition for the organic optoelectronic device of  claim 1 , wherein Ar 1  and Ar 2  of Chemical Formula 1 are each independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzosilolyl group, a substituted or unsubstituted benzonaphthofuran, or a substituted or unsubstituted benzonaphthothiophene. 
     
     
         5 . The composition for the organic optoelectronic device of  claim 1 , wherein
 Ar 1  and Ar 2  of Chemical Formula 1 are each independently a group of Group I:   
       
         
           
           
               
               
           
         
         in Group I, * is a linking point. 
       
     
     
         6 . The composition for the organic optoelectronic device of  claim 1 , wherein the first compound is a compound of Group 1: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         7 . The composition for the organic optoelectronic device of  claim 1 , wherein:
 the second compound is represented by any one of Chemical Formula 2A to Chemical Formula 2C:   
       
         
           
           
               
               
           
         
         in Chemical Formula 2A to Chemical Formula 2C, 
         Ar 3  to Ar 5 , L 3  to L 5 , and R 8  to R 12  are defined the same as those of Chemical Formula 2 and Chemical Formula 3, and 
         R b1  to R b4  are each independently defined the same as R b . 
       
     
     
         8 . The composition for the organic optoelectronic device of  claim 1 , wherein:
 the second compound is represented by Chemical Formula 2A-1, Chemical Formula 2A-2, Chemical Formula 2A-3, Chemical Formula 2A-4, Chemical Formula 2B-1, Chemical Formula 2B-2, Chemical Formula 2B-3, Chemical Formula 2B-4, Chemical Formula 2C-1, Chemical Formula 2C-2, Chemical Formula 2C-3, or Chemical Formula 2C-4:   
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         wherein, in Chemical Formula 2A-1, Chemical Formula 2A-2, Chemical Formula 2A-3, Chemical Formula 2A-4, Chemical Formula 2B-1, Chemical Formula 2B-2, Chemical Formula 2B-3, Chemical Formula 2B-4, Chemical Formula 2C-1, Chemical Formula 2C-2, Chemical Formula 2C-3, and Chemical Formula 2C-4, 
         Ar 3  to Ar 5 , L 3  to L 5 , and R 8  to R 12  are defined the same as those of Chemical Formula 2 and Chemical Formula 3, and 
         R b1  to R b4  are each independently defined the same as R b . 
       
     
     
         9 . The composition for the organic optoelectronic device of  claim 8 , wherein the second compound is represented by Chemical Formula 2A-1 to Chemical Formula 2A-4, Chemical Formula 2B-2, or Chemical Formula 2C-2. 
     
     
         10 . The composition for the organic optoelectronic device of  claim 1 , wherein
 L 3  to L 5  are each independently a single bond, a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted dibenzofuranylene group, or a substituted or unsubstituted dibenzothiophenylene group,   Ar 3  is a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group,   Ar 4  and Ar 5  are each independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted triphenylene group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzosilolyl group, or a substituted or unsubstituted diphenylamine group, and   R b , and R 8  to R 12  are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C5 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group.   
     
     
         11 . The composition for the organic optoelectronic device of  claim 1 , wherein the second compound is a compound of Group 2: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         12 . An organic photoelectronic device, comprising:
 an anode and a cathode facing each other,   at least one organic layer between the anode and the cathode,   wherein:   the at least one organic layer includes a light emitting layer, and   the light emitting layer includes the composition for the organic optoelectronic device of  claim 1 .   
     
     
         13 . The organic photoelectronic device of  claim 12 , wherein the composition for the organic optoelectronic device is a host of the light emitting layer. 
     
     
         14 . The organic photoelectronic device of  claim 13 , wherein the composition for the organic optoelectronic device includes the first compound and the second compound in a weight ratio of 70:30 to 30:70. 
     
     
         15 . A display device comprising the organic photoelectronic device of  claim 12 .